CN2619829Y

CN2619829Y - Double motor input speed reducer for electric vehicle

Info

Publication number: CN2619829Y
Application number: CNU03230806XU
Authority: CN
Inventors: 叶致中
Original assignee: HANGZHOU HUOLIENIAO INST OF GREEN POWER
Current assignee: Huarong Wanyuan Bus Manufacture Co., Ltd.
Priority date: 2003-04-30
Filing date: 2003-04-30
Publication date: 2004-06-09
Anticipated expiration: 2013-04-30

Abstract

The utility model discloses a motorcar functional double motors input speed reducer, which mainly comprises an input shaft end cap, a middle shaft, a middle shaft bearing, an output gear wheel shaft, an output terminal bearing, an outer cover, an output flange and a central gear wheel. Wherein, one end of the input terminal gear wheel shaft is connected with the motor; the output terminal gear wheel shaft and the middle shaft respectively form two meshing pairs outside the gear wheel, and the output flange is connected with a universal joint. Under the circumstance that a turbo machine can input adequate output electric power, the motorcar adopting the double motors input speed reducer adopts the single power output form of the double motors power input. The utility model solves the problem that under the situation of power output for single motor input to the motor vehicles, the motor vehicles can not ensure the most basic overall power requirements to the motor vehicles themselves. Moreover, the structure is simple and the volume is small, thus the utility model has a practicable insignificance on the development of the motorcars.

Description

Electric vehicle double-motor input retarder

Technical field

The utility model relates to a kind of retarder, particularly a kind of electric vehicle double-motor input retarder.

Background technology

For present domestic mixed power electric car, because the electric energy that all energy sources of vehicle displacement are converted in turbo-machine, so the electric energy that turbo-machine sent shows valuable especially for electronlmobil, thereby in the whole transmission process of energy, should reduce waste of power and waste on each drive disk assembly as far as possible.

One of difficult point of vehicle technology is the technology of electrical motor, and in the product line of present domestic main battery-driven car motor special manufacturer, we can only have very little choice.At present our 11 meters long hybrid power passenger car products, because required power is bigger, control the takeoff output of car load by conventional thought adapted list motor, aspect power and output torque, can not reach required power requirement.

Summary of the invention

The purpose of this utility model be provide a kind of the most basic car load power that guarantees elec. vehicle self to require for the deficiency that solves above-mentioned technology and volume little, the electric vehicle double-motor input retarder of double dynamical input single action power output.

In order to achieve the above object, the electric vehicle double-motor input retarder that the utility model is designed, it mainly is made up of input shaft end cap, tween drive shaft, layshaft bearing, input end gear axle, input end bearing, housing, output flange, sun gear.One end of input end gear axle links to each other with motor, and input end gear axle and tween drive shaft have been formed two gear external toothing pairs respectively, and output flange links to each other with universal-joint; Thereby be converted into two-way kinetic energy by two electrical motors by the electric energy that turbo-machine produces, and pass to two input end gear axles then, merge at the sun gear place, only export by output flange.

If the line of centres of two pairs of each gears of gear pair on same straight line, can cause whole retarder volume excessive, take big vehicle body space.And for mixed power electric car, the space of car body is at full stretch.In order to address this problem, the line of centres of two input end gear axles and sun gear constitutes an equicrural triangle mode arrangement structure in its end face direction.Like this, since in the increase of longitudinal size not as good as the reducing of lateral dimension, so the overall volume of retarder has reduced greatly.

This electric vehicle double-motor input retarder, can export under the prerequisite of abundant electric energy guaranteeing turbo-machine, adopted the mode of double-motor power input single action power output, solved elec. vehicle under single motor input and output power situation, can not guarantee the problem that the most basic car load power of elec. vehicle self requires, and simple in structure, volume is little, it has very active operation significance to the development of battery-driven car

Description of drawings

Fig. 1 is double-motor input reducer structure figure

Fig. 2 is a retarder internal gear drive mechanism scheme drawing

The specific embodiment

In conjunction with the accompanying drawings the utility model is further described below by embodiment.

Embodiment 1

As shown in Figure 1, the electric vehicle double-motor input retarder that present embodiment is described, it mainly comprises input shaft end cap 1, tween drive shaft 2, layshaft bearing 3, input end gear axle 4, input end bearing 5, housing 6, output flange 7, sun gear 8, one end of input end gear axle 4 links to each other with motor, input end gear axle 4 is formed two gear external toothing pairs respectively with tween drive shaft 2, and output flange 7 links to each other with universal-joint.Excessive for fear of whole retarder volume, reduce car body and take up room, two input end gear axles 4 constitute an equicrural triangle mode arrangement structure with the line of centres of sun gear 8 in its end face direction.

In order more at large to describe present embodiment, the power transmission process of mixed power electric car is once described briefly earlier.The electric energy that the energy of mixed power electric car is all produced from the turbo-machine burning diesel oil, this part electric energy is divided into two-way, one the tunnel gives the battery charge that vehicle was equipped with, electrical motor is passed to be converted into the kinetic energy that can powered vehicle travels in another road, because what vehicle was equipped with is two duplicate motors of every performance, so the level that turbo-machine produced is given two motors, pass to vehicular transmission shaft, drive axle, drive wheel through retarder then; Thereby satisfy the driving conditions of the various complexity of vehicle.

Two motors obtain being converted into identical kinetic energy behind the same electric energy, and the moment of torsion of motor output end, speed, hand of rotation are the same, so the moment of torsion of two input end gear axles 4 in retarder, speed, hand of rotation also all are the same.As shown in Figure 2, the hand of rotation of supposing two input end gear axles 4 all is a clockwise direction; So, the hand of rotation of sun gear 8 should be an anticlockwise direction, suitable two the motor independent drives of resulting moment of torsion and the moment of torsion sum that obtains.Speed is equivalent to the speed that obtains after single drive of motor.

Claims

1, a kind of electric vehicle double-motor input retarder, it comprises input shaft end cap (1), tween drive shaft (2), layshaft bearing (3), input end gear axle (4), input end bearing (5), housing (6), output flange (7), sun gear (8), an end that it is characterized in that input end gear axle (4) links to each other with motor, input end gear axle 4 is formed two gear external toothing pairs respectively with tween drive shaft (2), and output flange (7) links to each other with universal-joint.

2, electric vehicle double-motor input retarder according to claim 1 is characterized in that two the input end gear axles (4) and the line of centres of sun gear (8) constitute an equicrural triangle mode arrangement structure in its end face direction.